WO2014067824A1 - Flanc de pneumatique pour vehicule lourd de type genie civil - Google Patents
Flanc de pneumatique pour vehicule lourd de type genie civil Download PDFInfo
- Publication number
- WO2014067824A1 WO2014067824A1 PCT/EP2013/072136 EP2013072136W WO2014067824A1 WO 2014067824 A1 WO2014067824 A1 WO 2014067824A1 EP 2013072136 W EP2013072136 W EP 2013072136W WO 2014067824 A1 WO2014067824 A1 WO 2014067824A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- face
- retro
- coating material
- side face
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/001—Decorating, marking or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/02—Arrangement of grooves or ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C2019/004—Tyre sensors other than for detecting tyre pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
- B60C2200/065—Tyres specially adapted for particular applications for heavy duty vehicles for construction vehicles
Definitions
- the present invention relates to a tire for a heavy vehicle type civil works to evolve in a dark environment, such as an underground mining machine.
- the gear used for underground mining is in front of the waist, or for the transport of ore, evolve most often in a dark environment. They are, in all cases, constrained in their movements by the smallness of the galleries, by the severity of the changes of direction, for example in the case of a network of perpendicular galleries, and by the quasi total obscurity which reigns in them. underground mines. In this degraded visual environment, the risk of collision between a vehicle and any obstacle present on its path, such as a gallery wall, is not negligible.
- the main light source is limited to the beams emitted by the headlamps of minors, the location of these machines is particularly difficult. Visual detection in dark environments of these machines is therefore an important requirement for an underground mine operator.
- Retro reflection is a reflection in which the light radiation is returned in a direction close to that from which it originates, this property being maintained despite large variations in the direction of incident radiation.
- Retro-reflective device is a device which, when radiated directionally, retro-reflects a relatively large portion of the incident radiation.
- a retro-reflective tire within the meaning of Regulation No. 88 mentioned above, is a tire ready to be used comprising a retro-reflective circle incorporated in each of the tire sidewalls.
- a tire comprises a tread intended to come into contact with a ground via a running surface.
- the running surface extends axially, that is to say parallel to the axis of rotation of the tire, between two axial ends.
- Each axial end of the running surface is extended radially inward, that is to say in a direction perpendicular to the axis of rotation of the tire, by two tread end faces.
- Each tread end face is extended radially inwardly by an outer side of the tread.
- the assembly consisting of a tread end face and the outer side of the flank extending radially inwardly constitutes a tire side face.
- the term "external surface of the tire” means the assembly constituted by the running surface and the two lateral tire faces, symmetrical with respect to the equatorial plane of the tire passing through the middle of the running surface and perpendicular to the axis of rotation of the tire. pneumatic.
- the outer surface of the tire is generally subjected to mechanical attack, on the one hand because of the presence on the ground of many blocks of stone more or less angular, on the other hand because the aggression of the gallery walls carved into the rock. These mechanical aggressions can lead to tearing of materials, in particular on the tire side faces, or even a puncture of the tire. In the event of major tearing, the tire must be replaced prematurely in relation to its usual service life, which results in additional operating costs.
- the inventors have set themselves the objective of allowing the visual detection in dark environment of the attacked areas of the side faces of a tire fitted to a heavy civil engineering vehicle used in an aggressive mechanical environment such as that of underground mines.
- a tire stress indicator method for a heavy vehicle of the civil engineering type comprising a tread, the tread comprising a running surface having two extended axial ends. radially inwardly by two tread end faces, each tread end face being extended radially inwardly by an outer side of a tread, a tread end face and the radially inwardly extending flank outer side constituting a tire side face, the method comprising:
- a tire stress indicator method is a method for visually determining in a dark environment a qualitative level and / or quantitative aggressions of the tire.
- aggression means any accidental removal of elastomeric material on a side face of the tire, either at an end face of the tread, or at an outer side of the sidewall.
- An attack in the sense of the invention does not relate to the running surface.
- the tire stress indicator method comprises a first step of applying a retro-reflective coating material on at least a portion of at least one tire side face, allowing visual detection in an obscure environment of the tire. the portion of at least one tire side face.
- a retro-reflective coating material is therefore applied to a tire side face.
- the mode of application depends on the nature of the retro-reflective coating material. It may comprise a placing step followed by a step of fixing, for example by heating, the retro-reflective coating material.
- the retro-reflective coating material may be applied on only one side face of the tire, in particular the external lateral face of the tire, which is the only visible one when the tire is mounted on the axle of a machine. .
- the retro-reflective coating material may be applied only to a part of the lateral face of the tire concerned, particularly that which is supposed to be subjected to the most aggressions.
- This tire side face portion may be limited to all or part of the end face of the tread and / or all or part of the outer side of the sidewall.
- the retro-reflective coating material thus applied to a tire side face can identify the tire individually, for example when stored in a storage location of an underground mine. It also identifies the craft on which it is mounted.
- the tire stress indicator method comprises a second step of using the tire in a mechanically aggressive environment.
- the tire mounted on an axle of a machine, rolls in its mechanically aggressive operating environment on the one hand because of the presence on the ground of many blocks of stone more or less angular, on the other hand, because of the aggressiveness of the gallery walls carved in the rock.
- the aggressed tire sidewall portions initially coated with the retro-reflective coating material, will lose said retro-reflective coating material due to mechanical stresses to the tire in use.
- the tire stress indicator method comprises a third dark environment identification step of the damaged areas of the portion of at least one tire side face initially coated by the retro-reflective coating material and devoid of said material. retro-reflective coating due to the mechanical aggressions suffered by the tire in use.
- the aggressed areas of the tire side face, initially coated by the retro-reflective coating material will thus be distinguishable from areas not damaged by the disappearance of the retro-reflective coating material.
- On the lateral side of the tire it is then possible to observe non-attacking retro-reflective zones and attacked black areas.
- the local disappearance of the retro-reflective coating is an indicator of local aggression of the tire side face.
- Another advantage of the invention is that the stones or blocks of stone at the origin of the aggressions of the tire side faces will bear the traces of the retro-reflective coating material thus ripped off. This will help determine the most aggressive places for the tire along the path followed by the machine.
- the first step is a step of applying a retro-reflective coating material on at least a portion of at least one outer side of the sidewall. In other words, the detection of the attacked areas is limited to an outer side of the flank.
- the first step is a step of applying a retro-reflective coating material on at least a portion of at least one tread end face. In other words, the detection of the attacked areas is limited to a tread end face.
- the first step is a step of applying a retro-reflective coating material of the coating product type.
- a coating product-type retro-reflective coating material may be a paint which has the advantage of being easily applied to a tire side face.
- the first step is a step of applying a retro-reflective coating material of the coating product type comprising glass microbeads.
- This type of retro-reflective coating material has the advantage, on the one hand, of being efficient in terms of retro-flexion, on the other hand of being particularly suitable for application to an elastomeric material, such as that which constitutes the side tire face.
- the method of applying such a retro-reflective coating material is well known to those skilled in the art.
- the document US6623793 describes such an application method.
- the third dark environment identification step of the attacked zones of the portion of at least one tire side face comprises a step of locating the attacked zones of the portion of at least one lateral face. of tire.
- the aggression indicator is a purely qualitative indicator based solely on the location of the attacked areas.
- the third dark environment identification step of the attacked zones of the portion of at least one tire side face comprises a step of measuring the depth of the attacked zones of the part of at least a tire side face.
- the tire side face may be provided with adjacent two-by-two circumferential grooves of different depths and covered with a retro-reflective coating material.
- the identification of the grooves still covered with retro-reflective coating material, after aggression makes it possible to indicate that the depth of the aggression is less than that of the grooves still intact. It is therefore a quantitative indicator of the depth of aggression.
- the third dark environment identification step of the attacked zones of the portion of at least one tire side face comprises a step of measuring the extent of the attacked areas of the part of the tire. less a tire side face.
- a measure of the extent of an attacked area may consist simply of an estimate of its geometric area.
- the indicator of aggression can be a quantitative indicator such as, for example and non-exhaustively, an interval in which are included the geometric surfaces of the attacked areas, or the total geometrical surface attacked, sum of the geometric surfaces aggressed areas.
- the third dark environment identification step of the attacked zones of the portion of at least one tire side face comprises a step of counting the attacked zones of the portion of at least one tire. side tire face.
- the aggression indicator may be a quantitative indicator such as, for example and non-exhaustively, the total number of zones assaulted on the tire side face or the number of zones assaulted on a lateral face portion. given tire.
- Figures 1 and 2 are not shown in scale for ease of understanding.
- Figure 1 shows a meridian half-section of a tire, that is to say according to a meridian plane containing the axis of rotation of the tire.
- Figure 2 shows a side view of a tire, according to the invention.
- the tire 1 only a half meridian section is shown, comprises a tread 2.
- the tread 2 comprises a tread surface 3 having an axial end extended radially inwardly by a tread end face 4.
- the tread end face 4 is extended radially inwardly by an outer side of the sidewall 5.
- the tread end face 4 and the face outer side wall 5 extending radially inwardly constitute a tire side face 6.
- a retro-reflective coating material 7 is applied on at least a portion of the tire side face 6, and, in this case, on a part of the outer wall side 5, A retro-reflective coating material 7 is applied.
- the thickness of retro-reflective coating material 7 is not shown in scale for ease of understanding.
- a discontinuity in the retro-reflective coating material 7 represents an attacked area 8.
- the tire 1 in profile view, comprises a tread 2 intended to come into contact with a ground via a rolling surface 3.
- the lateral face of the tire 6, formed by the tread end face 4 and the outer wall face 5, is covered on a portion of the outer side wall 5 by a retro-reflective coating material 7 in excess relative to the outer face of flank 5.
- a retro-reflective coating material 7 in excess relative to the outer face of flank 5.
- the invention has been more particularly tested on a tire equipping an underground mining machine, with application of a retro-reflective material type coating comprising glass microbeads.
- the inventors have been able to observe the expected benefits in terms of indication of aggression.
- the invention can be extended to any type of retro-reflective coating material compatible with an elastomeric material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tires In General (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2013339571A AU2013339571B2 (en) | 2012-10-31 | 2013-10-23 | Tyre sidewall for a heavy civil engineering vehicle |
JP2015538427A JP6302474B2 (ja) | 2012-10-31 | 2013-10-23 | 土木工学型重車両用タイヤサイドウォール |
US14/439,624 US9989440B2 (en) | 2012-10-31 | 2013-10-23 | Tire sidewall for a heavy civil engineering vehicle |
BR112015008764-7A BR112015008764B1 (pt) | 2012-10-31 | 2013-10-23 | processo para indicar agressões a um pneumático para um veículo pesado de tipo engenharia civil |
CN201380056629.1A CN104768775B (zh) | 2012-10-31 | 2013-10-23 | 用于指示轮胎上的攻击的方法 |
EP13779878.1A EP2914449B1 (fr) | 2012-10-31 | 2013-10-23 | Flanc de pneumatique pour vehicule lourd de type genie civil |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1260412A FR2997344B1 (fr) | 2012-10-31 | 2012-10-31 | Flanc de pneumatique pour vehicule lourd de type genie civil |
FR1260412 | 2012-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014067824A1 true WO2014067824A1 (fr) | 2014-05-08 |
Family
ID=47598937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/072136 WO2014067824A1 (fr) | 2012-10-31 | 2013-10-23 | Flanc de pneumatique pour vehicule lourd de type genie civil |
Country Status (9)
Country | Link |
---|---|
US (1) | US9989440B2 (fr) |
EP (1) | EP2914449B1 (fr) |
JP (1) | JP6302474B2 (fr) |
CN (1) | CN104768775B (fr) |
AU (1) | AU2013339571B2 (fr) |
BR (1) | BR112015008764B1 (fr) |
CL (1) | CL2015001095A1 (fr) |
FR (1) | FR2997344B1 (fr) |
WO (1) | WO2014067824A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD926112S1 (en) | 2018-10-05 | 2021-07-27 | The Yokohama Rubber Co., Ltd. | Automobile tire |
USD926113S1 (en) | 2018-10-05 | 2021-07-27 | The Yokohama Rubber Co., Ltd. | Automobile tire |
USD926114S1 (en) | 2018-10-05 | 2021-07-27 | The Yokohama Rubber Co., Ltd. | Automobile tire |
USD926672S1 (en) | 2018-10-05 | 2021-08-03 | The Yokohama Rubber Co., Ltd. | Automobile tire |
USD926673S1 (en) | 2018-10-05 | 2021-08-03 | The Yokohama Rubber Co., Ltd. | Automobile tire |
USD926115S1 (en) | 2018-10-05 | 2021-07-27 | The Yokohama Rubber Co., Ltd. | Automobile tire |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6221453B1 (en) * | 1999-03-02 | 2001-04-24 | The Goodyear Tire & Rubber Company | Harmonic label for marking of tires |
US20030140999A1 (en) * | 2002-01-28 | 2003-07-31 | Smith Krag C. | Motor vehicle tires |
US6623793B2 (en) | 2000-08-16 | 2003-09-23 | Litetech, Inc. | Process for forming a reflective surface |
DE102009044718A1 (de) * | 2009-12-01 | 2011-06-09 | Contitech Ag | Lasermarkierbarer Gummiartikel |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3449201A (en) * | 1965-11-05 | 1969-06-10 | Minnesota Mining & Mfg | Tire sidewall facings |
JPS5522282B2 (fr) * | 1974-12-28 | 1980-06-16 | ||
JPS5911903A (ja) * | 1982-07-09 | 1984-01-21 | Hiroshi Yamanaka | タイヤ |
EP0364291B1 (fr) * | 1988-10-14 | 1994-12-21 | Bridgestone Corporation | Bandage pneumatique radial pour avions |
KR100189649B1 (ko) * | 1996-10-14 | 1999-06-01 | 신형인 | 타이어 트레드의 마모 평가 방법 |
JP2012106704A (ja) * | 2010-11-19 | 2012-06-07 | Global Trading Kk | タイヤ塗装用塗料、タイヤ塗装方法、塗装タイヤ |
JP5343961B2 (ja) * | 2010-12-21 | 2013-11-13 | 横浜ゴム株式会社 | 空気入りタイヤ |
-
2012
- 2012-10-31 FR FR1260412A patent/FR2997344B1/fr active Active
-
2013
- 2013-10-23 WO PCT/EP2013/072136 patent/WO2014067824A1/fr active Application Filing
- 2013-10-23 BR BR112015008764-7A patent/BR112015008764B1/pt not_active IP Right Cessation
- 2013-10-23 EP EP13779878.1A patent/EP2914449B1/fr not_active Not-in-force
- 2013-10-23 US US14/439,624 patent/US9989440B2/en active Active
- 2013-10-23 JP JP2015538427A patent/JP6302474B2/ja not_active Expired - Fee Related
- 2013-10-23 AU AU2013339571A patent/AU2013339571B2/en not_active Ceased
- 2013-10-23 CN CN201380056629.1A patent/CN104768775B/zh active Active
-
2015
- 2015-04-27 CL CL2015001095A patent/CL2015001095A1/es unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6221453B1 (en) * | 1999-03-02 | 2001-04-24 | The Goodyear Tire & Rubber Company | Harmonic label for marking of tires |
US6623793B2 (en) | 2000-08-16 | 2003-09-23 | Litetech, Inc. | Process for forming a reflective surface |
US20030140999A1 (en) * | 2002-01-28 | 2003-07-31 | Smith Krag C. | Motor vehicle tires |
DE102009044718A1 (de) * | 2009-12-01 | 2011-06-09 | Contitech Ag | Lasermarkierbarer Gummiartikel |
Also Published As
Publication number | Publication date |
---|---|
CN104768775A (zh) | 2015-07-08 |
CN104768775B (zh) | 2018-05-08 |
US9989440B2 (en) | 2018-06-05 |
AU2013339571B2 (en) | 2016-02-11 |
JP2016500609A (ja) | 2016-01-14 |
JP6302474B2 (ja) | 2018-03-28 |
FR2997344B1 (fr) | 2014-11-21 |
FR2997344A1 (fr) | 2014-05-02 |
US20150316449A1 (en) | 2015-11-05 |
EP2914449B1 (fr) | 2018-02-21 |
BR112015008764B1 (pt) | 2020-12-01 |
EP2914449A1 (fr) | 2015-09-09 |
CL2015001095A1 (es) | 2016-04-22 |
BR112015008764A2 (pt) | 2017-07-04 |
AU2013339571A1 (en) | 2015-05-21 |
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